|
Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com |
[SA18497] Serial Line Sniffer "HOME" Environment Variable Buffer Overflow
From: Secunia Security Advisories (sec-adv
secunia.com)
Date: Mon Jan 16 2006 - 09:32:04 CST
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
TITLE:
Serial Line Sniffer "HOME" Environment Variable Buffer Overflow
SECUNIA ADVISORY ID:
SA18497
VERIFY ADVISORY:
http://secunia.com/advisories/18497/
CRITICAL:
Less critical
IMPACT:
Privilege escalation
WHERE:
Local system
SOFTWARE:
Serial Line Sniffer (slsnif) 0.x
http://secunia.com/product/6832/
DESCRIPTION:
Sintigan has discovered a vulnerability in Serial Line Sniffer
(slsnif), which potentially can be exploited by malicious, local
users to gain escalated privileges.
The vulnerability is caused due to a boundary error in "readRC()" in
the handling of the "HOME" environment variable. This can be
exploited to cause a stack-based buffer overflow which potentially
allows arbitrary code execution.
Successful exploitation requires that slsnif is setuid root.
The vulnerability has been confirmed in version 0.4.4. Other versions
may also be affected.
SOLUTION:
Remove the suid bits from the binary.
PROVIDED AND/OR DISCOVERED BY:
Sintigan
ORIGINAL ADVISORY:
http://shellcoders.com/sintigan/slsnif-ploit.pl
----------------------------------------------------------------------
About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.
Subscribe:
http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/
Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.
----------------------------------------------------------------------
Unsubscribe: Secunia Security Advisories
----------------------------------------------------------------------
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]